The detailed model looks good. I also like the colored glass. You could of course add small variations to different channels to make it look slightly worn and thus more realistic. Also, the specularity makes it look more like plastic glass. Easy things to fix though.

But just like another entry in this contest you've excluded one of the more vital parts of transparency - background and surrounding objects. It's not really coming to life with this setup. I can see that it reflects some kind of image, but there's no trace of it in the image.